*{
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    
}
body{
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    flex-direction: column;
    background: #040d15;
}
a{
    position: relative;
    display: inline-block;
    padding: 12px 36px;
    margin: 10px 0;
    color: #fff;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    /* background: linear-gradient(); */
    border-radius: 40px;
    overflow: hidden;
    background: linear-gradient(to right, #0162c8, #55e7fc);
}
a:nth-child(2){
    background: linear-gradient(to right, #755bea, #ff72c0);
}
span{
    position: absolute;
    background: #fff;
    transform: translate(-50%, -50%);
    pointer-events: none;
    border-radius: 50%;
    animation: animate .75s linear infinite;
}
@keyframes animate
{
    0%{
        width: 0px;
        height: 0px;
        opacity: 0.5;
    }
    100%{
        width: 500px;
        height: 500px;
        opacity: 0;
    }
}